OData 4.5 for Web API, ODataLib 6.10.0 Now Available -- Visual Studio Magazine

OData 4.5 for Web API, ODataLib 6.10.0 Now Available

New versions of OData and ODataLib were released late last month on NuGet.

By Michael Domingo
02/19/2015

New versions of OData and ODataLib were released late last month via NuGet.

Open Data Protocol (OData) is a data access protocol that Microsoft helped to define and develop to allow data to connect data sources via Web sites. It essentially allows developers to create REST-based data services to be published and edited by Web clients using simple HTTP messages.

OData 4.5 for Web API has a number of new features:

Referential constraint support: It allows for defining referential constraint either using an attribute, by convention or programmatically.
Relax flag for version constraint: An IsRelaxedMatch flag allows for a relaxed version constraint. By default it's false, but setting it to true allows for requests to be from OData version 3 or 4 headers.
DateTime: There's also an API for configuring Time Zone on the server-side because DateTime isn't supported as a primitive type.

This is just a highlight, so be sure to read the blog post for a full list of features and bug fixes.

ODataLib 6.10.0 provides a number of components that can be used with OData v4 clients and services, as needed. New features include:

EdmLib support for EdmError/EdmLocation containing a file name
Client support for getting instance annotations from payload or getting metadata annotations
Client support for posting an action with entity-valued parameters that only contain setted properties

Descriptions of these features, as well as bug fixes, can be seen on the NuGet site; ODataLib 6.10.0 itself can be downloaded and contributed to through CodePlex.

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